Display screen or portion thereof with icon



FIG. 1 is a front view of an display screen or portion thereof with icon; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken line showing of the display screen, text and graphic elements in both views forms no part of the claimed design. The broken line showing of an alternate display screen in FIG. 2 forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 